Analysis

  • max time kernel
    148s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 03:33

General

  • Target
    SteamUI.dll
  • Size 2.6MB
  • Sample260823-d39sdsxtcs
  • SHA256 c24a209edd8bd42a189b36053aeaf0ef3838e479d461c8ce4a9f3d4785f6e6da
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\SteamUI.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\SteamUI.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5412
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5412 -s 636
        3⤵
        • Program crash
        PID:6564
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:5320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5412 -ip 5412
      1⤵
        PID:2764

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            memory/5412-0-0x0000000000CB0000-0x0000000000CEF000-memory.dmp

            memory/5412-2-0x00000000022F0000-0x0000000002364000-memory.dmp